A very nice Norwegian user (Laff1) notified me about a possible invalid birth year: Michael Caine (1933). It's not listed in the accepted list, nor could I find any documentation about other Michael Caines.

Couldn't find an entry in the birth year thread, and I don't think there are credits for other Hans Zimmers, apart from the composer.

Did you validate that through the CLT?

I checked BY for composer Hans Zimmer (1957) and there's no other Hans Zimmer in Invelos CLT and IMDb with that name. BY is not documented in the in the forum's pinned "List of Accepted Birth Years with Documentation". So BY is not necessary nor allowed according to the rules. See also http://www.imdb.com/name/nm0001877/

Since the CLT was checked I definitely think you found one there.

But just to clarify that according to the rules, the lack of another in the CLT shows that by the rules it is not needed, but the rules do not state it has to be documented in the thread.

I know what you mean, clarification is not according to the rules. I was just giving the results of my researche.